Revert to v4 due to issue

See actions/stale#795
bot is seeing bot comments as updates and thus resetting the stale clock inappropriately

Author: ghogen

.github/workflows/stale-issues.yml

@@ -18,7 +18,7 @@ jobs:
       pull-requests: write  # for actions/stale to close stale PRs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v5.1.1
+      - uses: actions/stale@v4.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           stale-issue-message: 'Thanks for sharing your feedback. We apologize for our delayed response. Due to the sheer volume of feedback in our repo, we have decided to prioritize the newest issues and are automatically closing our oldest issues with an Issues bot. If you believe your feedback is still actionable, then either respond directly in this issue or open a new documentation issue and we’ll review. If no activity occurs in the next 14 days, this issue will be closed.'